*{
    margin: 0;
    padding: 0;
    list-style: none;
}
body{
    width: 1903px;
    overflow-x: hidden;
}
h1{
    text-align: center;
}
.title{
    margin: 20px 0;
}
.title ul{
    position: relative;
    height: 30px;
    width: 200px;
    margin: auto;
}
.title li{
    position: absolute;
    width: 50px;
    height: 30px;
    font-size: 20px;
    border-radius: 3px;
}
.title li:nth-of-type(1){
    color: orange;
    left: 0;
}
.title li:nth-of-type(2){
    right: 0;
}
.title span{
    cursor: pointer;
    display: inline-block;
    width: 50px;
    height: 30px;
    text-align: center;
}
.guideCon{
    width: 100%;
    height: max-content;
    background-color: rgb(230, 230, 230);
}
.nContent,
.hContent{
    width: 1300px;
    margin: auto;
}
.nCon,
.hCon{
    width: 100%;
    overflow: hidden;
}
img{
    width: 300px;
    vertical-align: middle;
    cursor: pointer;
}
.nCon li,
.hCon li{
    float: left;
    width: 300px;
    height: 300px;
    background-color: rgb(255, 255, 255);
    margin-right: 33px;
    margin-top: 20px;
    border-radius: 5px;
    overflow: hidden;
}
/* 将4的倍数的li标签右边距设置为0 */
.nCon li:nth-of-type(4n),
.hCon li:nth-of-type(4n){
    margin-right: 0px;
}
.guideCon p{
    margin: 20px;
    color: rgb(168, 168, 168);
    cursor: pointer;
}
.nCon div,
.hCon div{
    width: 50px;
    float: right;
    cursor: pointer;
}